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| Criterion |  UX Research Diary Study |  Product Discovery Context Canvas |  Operations 8D Problem Solving |  UX Research Contextual Inquiry |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | When an environment of users, systems, and constraints is hard to grasp, it puts the context compactly on the table. It creates a clear reading of influence, boundary, and dependency. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-4 Wochen | 45-90 min | 1-6 Wochen | 1-3 Wochen |
Participantsdifferent | 5-20 | 3-10 | 4-10 | 4-12 Beobachtungen |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Context canvas, Open questions, Shared context notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Field Notes, Workflow Insights, Pain Points |
Tagsno overlap | UX researchTrackingBehavior | ContextFramingRequirementsCanvas | QualityProblem solvingRoot cause | UX researchObservationContext |